Base | Representation |
---|---|
bin | 1010011001000001… |
… | …0010010001100101 |
3 | 21012101112110110102 |
4 | 2212100102101211 |
5 | 21203024141023 |
6 | 1140440033445 |
7 | 126056356052 |
oct | 24620222145 |
9 | 7171473412 |
10 | 2789287013 |
11 | 1201530687 |
12 | 65a162885 |
13 | 355b48cb6 |
14 | 1c6636029 |
15 | 114d20628 |
hex | a6412465 |
2789287013 has 2 divisors, whose sum is σ = 2789287014. Its totient is φ = 2789287012.
The previous prime is 2789286991. The next prime is 2789287057. The reversal of 2789287013 is 3107829872.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1881650884 + 907636129 = 43378^2 + 30127^2 .
It is a cyclic number.
It is not a de Polignac number, because 2789287013 - 214 = 2789270629 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2789287213) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394643506 + 1394643507.
It is an arithmetic number, because the mean of its divisors is an integer number (1394643507).
Almost surely, 22789287013 is an apocalyptic number.
It is an amenable number.
2789287013 is a deficient number, since it is larger than the sum of its proper divisors (1).
2789287013 is an equidigital number, since it uses as much as digits as its factorization.
2789287013 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 338688, while the sum is 47.
The square root of 2789287013 is about 52813.7009969951. The cubic root of 2789287013 is about 1407.6598866224.
The spelling of 2789287013 in words is "two billion, seven hundred eighty-nine million, two hundred eighty-seven thousand, thirteen".
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